> $ more chg-zd-mtx.20030617110112.debug
> chg-zd-mtx: debug 1 pid 2176 ruid 11 euid 11: start at Tue Jun 17 11:01:12
> 2003
> 11:01:12 Arg info:
>          $# = 2
>          $0 = "/opt/amanda-2.4.4/libexec/chg-zd-mtx"
>          $1 = "-slot"
>          $2 = "next"
> 11:01:12 Running: /opt/mtx/sbin/mtx status
> 11:01:12 Exit code: 0
>          Stdout:
>   Storage Changer /dev/sg2:1 Drives, 6 Slots ( 0 Import/Export )
> Data Transfer Element 0:Full (Storage Element 2 Loaded)
>       Storage Element 1:Full
>       Storage Element 2:Empty
>       Storage Element 3:Full
>       Storage Element 4:Full
>       Storage Element 5:Full
>       Storage Element 6:Full
> 11:01:12 Config info:
>          firstslot = "1"
>          lastslot = "6"
>          cleanslot = "-1"
>          cleancycle = "120"
>          offline_before_unload = "1"
>          unloadpause = "0"
>          autoclean = "0"
>          autocleancount = "99"
>          havereader = "0"
>          driveslot = "0"
>          poll_drive_ready = "3"
>          max_drive_wait = "120"
> 11:01:12 WARNING  -> current slot 2 not available, setting current slot to
> next slot (6)
> 11:01:12 LOADSLOT -> load drive 0 (/dev/nst0) from slot next
> 11:01:12 STATUS   -> currently loaded slot = 2
>                   -> currently loaded barcode = ""
> 11:01:12 Exit (0) -> 2 /dev/nst0
> chg-zd-mtx: pid 2333 finish time Tue Jun 17 11:01:12 2003

to follow up on this myself if i try and use chg-zd-mtx manually it seems to
fail

$ ../../libexec/chg-zd-mtx -info
6 6 1

so then goto the first slot

$ ../../libexec/chg-zd-mtx -reset
1 /dev/nst0

which is right, so goto the next slot

$ ../../libexec/chg-zd-mtx -slot next
1 /dev/nst0

hmmmm it stays where it is and the debug shows

chg-zd-mtx: debug 1 pid 18459 ruid 11 euid 11: start at Tue Jun 17 11:22:19
2003
11:22:19 Arg info:
         $# = 2
         $0 = "../../libexec/chg-zd-mtx"
         $1 = "-slot"
         $2 = "next"
11:22:19 Running: /opt/mtx/sbin/mtx status
11:22:19 Exit code: 0
         Stdout:
  Storage Changer /dev/sg2:1 Drives, 6 Slots ( 0 Import/Export )
Data Transfer Element 0:Full (Storage Element 1 Loaded)
      Storage Element 1:Empty
      Storage Element 2:Full
      Storage Element 3:Full
      Storage Element 4:Full
      Storage Element 5:Full
      Storage Element 6:Full
11:22:19 Config info:
         firstslot = "1"
         lastslot = "6"
         cleanslot = "-1"
         cleancycle = "120"
         offline_before_unload = "1"
         unloadpause = "0"
         autoclean = "0"
         autocleancount = "99"
         havereader = "0"
         driveslot = "0"
         poll_drive_ready = "3"
         max_drive_wait = "120"
11:22:20 WARNING  -> current slot 1 not available, setting current slot to
next slot (6)
11:22:20 LOADSLOT -> load drive 0 (/dev/nst0) from slot next
11:22:20 STATUS   -> currently loaded slot = 1
                  -> currently loaded barcode = ""
11:22:20 Exit (0) -> 1 /dev/nst0
chg-zd-mtx: pid 18616 finish time Tue Jun 17 11:22:20 2003